KEAM 2017 Physics and Chemistry Paper

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Question : 100 of 120

Marks: +1, -0

Identify the case(s) where there is change in oxidation number

Acidified solution of CrO42−
SO2 ga s bubbled through an acidic solution Cr2O72−
Alkaline solution of Cr2O72−
Ammoniacal solution of CrO42−
Aqueous solution of CrO2Cl2 in NaOH

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